Spring-bed



(No Model.)

J. J. MCCORMACK.

SPRING BBD.

No. 270.453. Patented Jan. 9, 1883'.

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IINtTED STATES PATENT OFFICE.

JAMES J. MCCORMACK, OF BOSTON, MASSACHUSETTS.

SPRING-BED.

SPECIFICATION vforming part of Letters Patent No. 270,453, dated January 9, 1883.

Application led December 4. 1882. (No model.)

To all whom it may concern Be it known that l, JAMES J. MCCORMACK, of Boston, county of Suli'olk, State ot' Massachusetts, have invented an Improvement in Spring-Beds, ot' which the following description, in connection with the accompanying drawings, is a specitication, like letters on the drawings representing like parts.

This invention relates to that class of springbed which is adapted to be folded longitudinally, and has for its object to keep the bed from sagging at its center and to strengthen the frame.,

My improved hed is composed of two metal frames having loops or eyes which are connected with and so as to turn on or with relation to a longitudinal rod placed at the center of the bed. The conical springs employed have their small ends attached by rivets to iron bands crossed as shown, and the upper ends of these springs which are nearest the frame ot the bed-bottoin are connected with the said frame by metal clamps, and the remaining spiings ot' the bed-bottom are. joined with the springs referred to and with each other by means ot liexible connections, prei'- eralil) chains, and the chains connecting the central rows ot" springs are crossed over and under the longitudinal rod or central brace referred io. the chains above the rod 'being thus made etl'ective to depress the rod uniformly with the frame. .while those chains under the rod prevent the latter from being bentout ward when the bed is folded'centially. The rod referred to is a yielding rod.

Figure l represents in top view a springhed containing my invention, and Fig. 2 an end view thereof'. A

The under side of the bed-bottom is composed ot' a seriesot' long and short metal bands, a b, crossed and riveted together at. their crossing-points. vAt each crossing-point l attach by a suitable rivet, c, the lower end of a conical spring, d. y

The upper part ofv the bed-bottom is composed of t-wo metal frames, e e', bent to form side and end portions. These frames, common to other bed-bottoms, have, as heretofore made, been connected together by loops or eyes formed at theirends; but such a bed has been found to lack strength at its center and to sag objectionably, and to overcome such difficulties I have provided the bed-bottom with the longitudinal rod 0r brace g, and, as herein shown, I have provided it at each end with a long eye or loop, which is engaged by eyes of the frames e e', as shown in the drawings. The upper ends of these springs nearest the frames e 6 are connected with the frames by metal clamps l1., and the said springs arey in turn connected with other springs otl the bedr bottom by jexible connections or chains ml The connections or chains which unite the two most central rows of springs are made to crossalternately over and under the longitudinal rod or brace g, as shown in the drawings. The chains above the rod ca use it to descend unitor'nily with the lrames ee. When the bed is folded the chains which pass under the said rod act to prevent the same from being bent outward.- This rod materially'strengthens the bed-bottom, prevents the sagging of the mattress thereon, increases the strength and durabilityof the hed-bottoni,- and when folded makes a stiffer and stronger package. In the drawings l have not deemed it necessary to show the entire iiuiiiher ot' springs to be ernployed, but have represented some ofthe said springs and chains in dotted lines. I donot broadly claim a metal frame and wire springs.

I claim- 1. As an improved article of' manufacture, a bed-bottom composed ot' a series ot' springs, crossed bands to support them, two frames, e e', to which some of the said springs are clampeiL-Hexilile connections to unite the upper ends of' adjacent springs, and a long ritudi nal rod or brace,g, with which'the said frames e e are connected, all substantially as shown and described. 1

2. The series of crossed bands, their attached springs, chains, or connections to unite them, the frame e e', ronnected to the springs adjacent to them by clamps, and the longitudinal brace or rod g, the chain or connection passing 

